438 



INDEX 



Muscle, electrical condition of, 45 



extensibility of, 44, 66 



fatigue, 55 



heat production in, 45, 63 



latent period of contraction, 54 



minimum stimulus, ;"f. 



optimum load, 62 



optimum stimulus, 57 



physical characters of, 44 



proteids of, 42 



respiration of excised muscle, 69 



skeletal, 40 



spindles, 97 



stimulation by galvanic current, 

 50 



stimulation by induced elec- 

 tricity, 49 



storage of food in, 366 



structure of, 40 



successive stimuli, 57 



temperature effects, 56 



visceral, 40, 66 



visceral, staircase contraction of, 

 67 



voluntary contraction, 59 



wave of contraction, 52 



work, 61 

 Muscles, co-operative antagonism of, 



60 

 Muscular sense (see Sense) 



sense, centre for, 183 

 Muscular work, effect on excreta, 71 



work, man's, for a day, 378 

 Myelocytes, 193 

 Myogenic movements of intestine, 



354 



Myoglobulin, 42 

 Myohacruatin, 43 

 Myoids, 16, 40 

 Myopia, 114 

 Myosin, 42 

 Myosinogen, 42 

 Myostromiii, l_ 

 Myxoedema, 388 



NASAL cavity, 139 



Nasals (see Consonants) 



Naunyn's observations on cholesterin, 



343 



Near point of vision, 112 

 Necrobiosis, 8 

 Nerve cells, 76 



cells, function of, 86 



centres (see Centres) 



corpuscles, 78 



fibres, 78 



fibres, medullary sheaths of, 78 



fibres, non-medullated, 78 



specific energy of, 104 

 Nerves, 75 et seq. 



afferent, 85 



Nerves, auditory, 135 ; cochlear root 

 of, 136 ; vestibular root of, 137 



augmentor, 85 



efferent, 84 



excito-motor, 85 



excito-reflex, 85 



excito-secretory, 85 



factors modifying conduction in, 

 83 



inhibitory, 85 



mixed, 85 



motor, 85 



nature of impulse in, 86 



physiology of, 86 



rate of conduction in, 82 



secretory, 85 



sensory, 85 



spinal (see Spinal nerves) 



vaso-constrictor, 85, 263, 264 



vaso-dilator, 264 



Nervi erigentes, 146, 264, 355, 407 

 Nervous mechanism, intra-cardiac, 238 



system, 141 et seq. 

 Neural canal, 41> 

 Neurilerama, 78 

 Neuroglia, 148, 416 

 Neuro-keratin, 78 

 Neuro-muscular mechanism, 88 et seq 



fatigue of, 94 



Neutral sulphur in urine, 401 

 Neurons, 76, 416 



classification of, 84 



excitability of, 80 



extent of excitability of, 88 



ingoing, 81 



manifestation of activity of, 81 



outgoing, 81 



stimulation of, 80 

 Nicotine, effect of painting ganglia 



with, 143, 330 

 Ninth nerve, 146, 158 

 Nissl's degeneration, 87 



granules, 76, 87, 176 

 Nitrites, effect on blood pressure, 260 

 Nitrogen in the blood, 201 



in the urine, 396 et m>/. 

 Nodal swellings, 18 

 Nodes of Ranvier, 78 

 Nuclei of the cranial nerves, 158 



of the posterior columns, 89 

 Nucleins, 12 



Nucleo-albumin in the urine, 402 

 Nucleolus, 17 

 Nucleo-proteids, 344 



action of gastric juice on, 335 



action of trypsin on, 347 

 Nucleus, 17 et seq. 



cuneatus, 152, 155 



gracilis, 152, 166 

 Nutrition of the brain, 173 

 Nuts, as food, 322 



